netdev - [PATCH net-next v2 0/3] mlxsw: Thermal and hwmon extensions

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Date:   Mon, 24 Jun 2019 13:32:00 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jiri@...lanox.com, vadimp@...lanox.com,
        andrew@...n.ch, mlxsw@...lanox.com,
        Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next v2 0/3] mlxsw: Thermal and hwmon extensions

From: Ido Schimmel <idosch@...lanox.com>

This patchset from Vadim includes various enhancements to thermal and
hwmon code in mlxsw.

Patch #1 adds a thermal zone for each inter-connect device (gearbox).
These devices are present in SN3800 systems and code to expose their
temperature via hwmon was added in commit 2e265a8b6c09 ("mlxsw: core:
Extend hwmon interface with inter-connect temperature attributes").

Currently, there are multiple thermal zones in mlxsw and only a few
cooling devices. Patch #2 detects the hottest thermal zone and the
cooling devices are switched to follow its trends. RFC was sent last
month [1].

Patch #3 allows to read and report negative temperature of the sensors
mlxsw exposes via hwmon and thermal subsystems.

v2 (Andrew Lunn):
* In patch #3, replace '%u' with '%d' in mlxsw_hwmon_module_temp_show()

[1] https://patchwork.ozlabs.org/patch/1107161/

Vadim Pasternak (3):
  mlxsw: core: Extend thermal core with per inter-connect device thermal
    zones
  mlxsw: core: Add the hottest thermal zone detection
  mlxsw: core: Add support for negative temperature readout

 .../net/ethernet/mellanox/mlxsw/core_hwmon.c  |  14 +-
 .../ethernet/mellanox/mlxsw/core_thermal.c    | 208 +++++++++++++++++-
 drivers/net/ethernet/mellanox/mlxsw/reg.h     |  12 +-
 3 files changed, 209 insertions(+), 25 deletions(-)

-- 
2.20.1